baber/WOPTO huggingface dataset:
Patent GB-1182355-A (GB)
Title: Phosphorus-Containing Dicarboxylic Esters and processes for the production thereof
IPC: C07F9/12
Filed: 1967-02-22
Abstract: 1,182,355. Phosphorus-containing dicarboxylic esters. MOBIL OIL CORP. 22 Feb., 1967 [24 March, 1966], No. 8519/67. Heading C2C. [Also in Division C3] The invention comprises phosphorus-containing carboxylic esters of the general forrnulµ wherein R is an alkoxyalkyl, C 1 -C 18  alkyl, aryl, alkyl-aryl, wherein the alkyl is C 1 -C 18 , chloroaryl, bromoaryl, aralkyl or -(CH 2 CH(D)O) x H, R<SP>1</SP> is H, C 1 -C 18  alkyl or phenyl, R<SP>11</SP> is C 1 -C 13  alkyl or alkoxyalkyl, A is the nucleus of an aromatic or aliphatic dicarboxylic acid anhydride, D is H, methyl, ethyl, or a chloro derivative of methyl or ethyl, G is H or -P(O)(R<SP>1</SP>) a-  (OR)b, a and bare each 0 to 2, a+b being 2, r, s and t are 0 to 2, 0 to 2 and 1 to 3 respectively, their sum being 3, W is the nucleus of a polyhydroxy compound containing from 2 to 4 hydroxyls, x has an average value of from about 1À0 to 5À0 and z is an integer corresponding to the number of hydroxyls in W. A typical product of Formula I is represented by the formula which is prepared by reacting phthalic anhydride with an equimolar quantity of methyl alcohol, neutralizing the product with propylene oxide and then reacting with dimethyl phosphorochloridate, if desired in the presence of a halogen acid acceptor. Other methods applicable to the appropriate type of product are (a) the simultaneous reaction of an aromatic or aliphatic dicarboxylic acid anhydride, a phosphorus compound containing at least one acid function and ethylene oxide, propylene oxide, butylene oxide or epichlorhydrin, e.g. by mixing the anhydride and the phosphorus compound having an acid function followed by the stepwise addition of alkylene oxide to this mixture or by mixing the acid anhydride and alkylene oxide and then adding the phosphorus compound, and (b) a three-step process involving (1) the oxyalkylation of the phosphorus compound, (2) the reaction of the resulting product with the acid anhydride and (3) the neutralization of this product with additional alkylene oxide. Compounds of Formula II containing active hydrogens can also be reacted with a phosphorus compound of the type (R) 2 P(O)Hal, wherein R is as defined above and Hal is halogen. Several dicarboxylic anhydrides for use in the process are specified and examples are given wherein the acid anhydrides are those of phthalic, tetrabromophthalic, chlorendic and maleic acids. In one of the examples the following product: which corresponds to Formula III above, is obtained by reacting phthalic anhydride, propylene oxide and the phosphorus compound obtained by reacting pentaerythritol with the compound Cl 2 P(O)(OCH 3 ). The products are useful in the production of fire-retardant polyurethanes and as flame retardants for vinyl resins and polyesters.
Patent GB-249325-A (GB)
Title: Improvements in or relating to bed-pans for the use of invalids
IPC: A47K11/04
Filed: 1925-03-31
Abstract: 249,325. Long, D. S. March 31, 1925. Bed-pans.-An inflatable ring a of rubber or like material is adapted to receive at its centre a receptacle b, which may be of rubber, earthenware or metal. The base of the central opening is closed by a sheet of rubber d, and straps care provided for securing the bed-pan.
Patent GB-1173522-A (GB)
Title: Gelatin-Silver Halide Photographic Emulsions and their preparation
IPC: C08F20/56
Filed: 1967-02-22
Abstract: 1,173,522. Preparation of acrylamide copolymers. FERRANIA S.p.A. 22 Feb., 1967 [8 March, 1966], No. 8554/67. Heading C3P. [Also in Division G2] Water-soluble polymers containing randomly repeating units of the structures and where R and R<SP>1</SP> are each H or alkyl, R<SP>11</SP> and R<SP>111</SP> are each alkyl or together form a penta- or hexatomic heterocyclic ring are made by addition copolymerization of suitable monomers. In preparations 1-9, acrylamide is polymerized with N-acryloyl-morpholine, N- acryloyl-piperidine, N-acryloyl-pyrrolidine, N:N dimethylcrotonamide, N :N - diethylacrylamide, and N :N - dibutylacrylamide; polymerization is effected in acetone/methanol or ethanol in the presence of azobisisobutyronitrile.
Patent GB-1413273-A (GB)
Title: Film projection cassette
IPC: G11B23/087
Filed: 1974-02-26
Abstract: 1413273 Film-projection cassette BOLEX INTERNATIONAL SA 26 Feb 1974 [11 May 1973] 8571/74 Heading B8M A film cassette for projecting cinematographic film comprises a casing containing two film spools arranged side by side and in the same plane and having in the casing a film gate and means for forming an aperture for access to a portion of the film extending between the gate and one spool to enable a sound track reading head to be used in conjunction with the cassette. In one series of embodiment the means for forming an aperture comprises an easily broken away zone of the casing. The casing may be moulded from plastics material and the line of breakaway of the zone is defined by a groove. In the embodiment of Figs. 1-3, not shown, the zone comprises part of the top and side of the cassette case. In the embodiment of Fig. 4, not shown, the zone comprises part of the top, side and bottom of the case. In a further embodiment the breakaway zone is formed from a different material from the remainder of the casing. In an alternative embodiment the means for forming an aperture comprises a slide out portion containing a roller around which the film runs.
Patent GB-506213-A (GB)
Title: Improved manufacture of potassium persulphate
IPC: C25B1/28
Filed: 1938-03-21
Abstract: 506,213. Electrolytic production of persulphates. LAPORTE, Ltd., B. March 21, 1938, No. 8632. Convention date, March 31, 1937. [Class 41] Potassium persulphate is made by electrolysis of an aqueous solution, the composition of which substantially corresponds with that of a saturated solution of potassium sulphate and sulphuric acid in the proportion of three molecules of potassium sulphate and five molecules of sulphuric acid. An electrolyte specified contains 245 gms. sulphuric acid, 261 gms. potassium sulphate, and 730 gms. water, and may be made by starting with substances other than potassium sulphate, e.g. potassium bisulphate, and sulphuric acid, provided the composition is as stated. The persulphate formed.is nearly insoluble in such an electrolyte and may be kept in suspension by an upward flow of electrolyte or by the introduction of compressed air or both. The inflow of compressed air reduces the temperature which should be maintained at about 20-22‹ C. for an anodic current density of 0À5 amps per sq. cm. An arrangement which may be used in the process of the invention comprises a stoneware cell 12, which is shaped internally to form a support 22 for a cathode composed of four thick graphite plates 23, 24, 25 and 26 fastened together to form a rectangle and a graphite current supply rod 27. The anode consists of iridium-platinum wires 28 held vertically in an iron frame composed of longitudinal members 29 and 30 and vertical members 31 and 32 encased in ebonite 33, and having a current supply lead 34. Pipes 35 and 37 having perforations 36 and 38 through which fresh liquor and compressed air respectively are introduced, extend along. the lower part of the cell, and the suspension of potassium persulphate obtained is drawn off through the outflow pipe 13, cooled, filtered, resaturated, and returned to the cell.
Patent GB-410952-A (GB)
Title: Improvements in fittings for the overhead contact conductors of electric traction systems
IPC: B60M1/24
Filed: 1933-03-22
Abstract: 410,952. Suspending conductors. BRITISH INSULATED CABLES, Ltd., and ASTLEY, J. W., Prescot, Lancashire. March 22, 1933, No. 8650. [Class 36.] A suspension ear for an overhead conductor in an electric traction system has a central portion 5 adapted to grip the conductor 6, and laterally projecting guide surfaces 7 shaped to engage a trolly wheel or other current collecting device, and to lift it from the conductor as it approaches the gripped portion, guide it past that portion, and then to transfer it back into contact with the conductor. The conductor is accommodated in a groove 2 in the under surface of the ear, the groove extending beyond each end of the gripping portion 5 and rising gradually from each end towards the centre of the ear to conform to the natural curvature of the conductor. The guide surfaces 7 follow this curvature in the central part of the ear and bend away gradually in the reverse sense towards each end.
Patent GB-339907-A (GB)
Title: Improvements in or relating to machines for drying wool and other materials
IPC: F26B17/08
Filed: 1930-03-18
Abstract: 339,907. Malard, P. April 29, 1929, [Convention date]. Endless-band conveyers, fibrous &c. material carried on; reciprocating and oscillating conveyers coacting with fixed surfaces.-Relates to apparatus for drying wool &c., in which the drying air has a longitudinal helical movement over a vertical series of pervious tables (endless-bands, intermeshing grids &c.) 1, 2, 3 over which the wool &c. passes, successively in. opposite directions, from A to B, and consists in providing partitions 4, 5, 6 dividing the apparatus into compartments 7 - - 10 each containing portions only of the tables. A counter-current effect is thus obtained, whereby the drier air acts on the drier wool. The air enters at 11 and under the influence of fans 13, 14 is circulated helically through the lateral chamber 12 steam-heated at 12a, and through the wool in compartment 10, then passing through an inclined opening (not shown) into the lateral heating-chamber of compartment 9 where it is similarly circulated, thence by a longitudinal duct (not shown) to the left-hand end of the heating chamber 23 of compartment 8, and after similar circulation through compartment 8, and through compartment 7, it escapes at 30.
Patent GB-347413-A (GB)
Title: Improvements in ball or tube mills
IPC: B02C17/08
Filed: 1930-03-18
Abstract: 347,413. Ball or tube grinding or crushing mills. STONE, E. G., Crown Street, Wollongong, New South Wales, Australia. March 18, 1930, No. 8703. [Class 59.] In a ball mill comprising a framing and a series of crushing cylinders rotatably mounted on the framing and radially arranged round a common supporting shaft, each cylinder is provided with an automatically operated valve allowing only a predetermined quantity of material to be treated to be passed into the cylinder at each operation of the valve, and means permitting graded discharge of treated material from the cylinders. The cylinders 5 are mounted in a frame 4 rotatable on a spindle 3 by an annular toothed ring 9. An annular hopper 11, provided with an opening 12 surrounds the cylinders 5 and receives material from a shoot 13. The end of each cylinder is provided with a closure member 15 and scoop 16 operated by a bell crank 17 which maintains the member 15 closed by a spring 19. A fixed cam 18 is attached to the mill framework 1 and operates each crank 17 in turn as the cylinders pass through the lowermost position to open the member 5 and inject a charge into the cylinder by the scoop 16. The opposite end of each cylinder is provided with an opening 21 through which the ground material is discharged on to a screen 22 attached to the cylinder. The screens rotate in an annular partitioned chamber, the partition being provided with an annular ring 25 which adjoins apertures 24 in the end of the screens whereby the fines are collected in chamber 23 and the coarse material is discharged through the ring 25 to the chamber 26. The framework 1 may be mounted on wheels 27, Fig. 6, which run on rails in an external frame 30, 31, the frame 1 being reciprocated by a cam 29 and spring 32.
Patent GB-314110-A (GB)
Title: Washing flue gases
IPC: B01D47/06
Filed: 1928-03-22
Abstract: 314,110. Baron, J. T., and Clarke, J. B. March 22, 1928. Smoke and fumes, washing.-Superposed offset sprinkling devices 3, 4, 5 each fitted with a number of sprinklers 8 delivering localized showers of liquid in mist form are located at a high elevation within the chimneys 2 of a boiler plant which is otherwise unobstructed. Grit &c. and liquid collect in hoppers 9, 10 and pass into settling tanks 12.
Patent GB-199486-A (GB)
Title: Improvements in and relating to the landing gear of aircraft
IPC: B64C25/50
Filed: 1922-03-28
Abstract: 199,486. Bolas, H., and Parnall, G. G. March 28, 1922. Actuated or applied by weight of vehicle; disc; protectors for brakes.-An aircraft has a landing- wheel fitted with a braking device which is applied automatically in proportion to the load on the wheel. Means under the control of the pilot are provided for preventing the application of the brake, and the wheel is mounted for steering. Figs. 2 and 3 show a wheel 2 for supporting the rear end of an aircraft fuselage, the wheel being mounted on an axle 6 carried by a frame 5 connected to a sleeve 14 which slides on a vertical spindle 16. The spindle 16 is connected through a ball-joint 17 to a shock-absorber 19 mounted on the fuselage. Upward movement of the sleeve 14 is limited by a flange 15. The ends of the axle 6 have blocks 37 sliding in guides 7 on a circular rotatable frame 8 on the floor of the fuselage. A spindle 24 supported by brackets on the members 5 carries a lever 20 connected towards one end by a link 22 to the spindle 16. The opposite end has a series of holes 28 for adjustable connection to a bridge-piece 33 which is connected at its ends to rods 26 coupled to levers 27 on sleeves 13 capable of turning without sliding on the axle 6. The sleeves 13 have inclined teeth engaging similar teeth on sliding sleeves 10 carried by brake discs 9 which are prevented from rotating by torquerods 12. Upward movement of the wheel under load thus results in brake surfaces 11 carried by the discs 9 being pressed against the wheel 2. Application of the brakes may be prevented, when it is desired to taxi the machine, by means of a cam 30 which can be brought into engagement with a roller 28a on the lever 20 by means of Bowden cables passed around pulleys 29. Sideplates 33 on the wheel 2 keep mud off the brake discs. Radius rods are employed to centralize the wheel and its supports within the fuselage.
Patent GB-977793-A (GB)
Title: Improvements in or relating to butterfly valves
IPC: F16K1/22
Filed: 1963-03-06
Abstract: 977,793. Valves. H. G. BINDER. March 6, 1963, No. 8838/63, Heading F2V. A butterfly valve disc c, Figs. 1, 3, is fixed to a spindle b of which both ends are rotatably supported in the body a and of which the axis d is offset from the seating line f of the disc by a distance at least equal to the spindle radius and is also offset from the axis g of the bore in the bore in the body, preferably by a similar amount. The disc may be slightly larger than the bore in which it seats, in which case it is made slightly elliptical or its edge is provided with a resilient, bent-over lip or with a rubber or radially resilient, metal sealing ring. Alternatively, the bore may have a resilient seating ring. The body may have one end formed with a portion B, Fig. 12, for welding to a tank C.
Patent GB-1374912-A (GB)
Title: Container spouts
Inventor: KLYGIS M J
IPC: B65D25/48
Filed: 1972-02-25
Abstract: 1374912 Pouring spout; packaging containers ILLINOIS TOOL WORKS Inc 25 Feb 1972 [26 Feb 1971] 8845/72 Headings B8D and B8C A pouring spout for a can is formed from a flat sheet of resilient flexible plastics material, e.g. high density polyethylene, having a band 14, which is integrally connected at its ends to the sides of the part of the sheet defining the base portion of the spout and which is movable out of the plane of the sheet to shape the spout and to form with the base portion a can-encircling attachment. The band may be defined by a slit 28 extending parallel to an end edge of the sheet. Alternately, the band may be defined by two parallel slits 24, 25, Fig. 7 (not shown), or arcuate loops 17 or 21, Figs. 4 and 5 or Fig. 6 (not shown). The base portion of the spout may be provided with a lip extension 22, Fig. 6, or a handle 18, Figs. 4 and 5, to permit the formation of a multipack of cans by securing the handles together. The spout is provided with convergent score lines 16 to ensure the spout assumes a more V-shaped configuration towards the spout tip.
Patent GB-1122467-A (GB)
Title: Process for producing l-glutamine
IPC: C12P13/14
Filed: 1966-03-01
Abstract: L-Glutamine is prepared by aerobically culturing a micro-organism capable of producing L-glutamic acid in an aqueous nutrient medium containing a source of carbon, at least 10 parts by weight of available nitrogen per 100 parts by weight of available carbon, and more than 10-7 mole per litre of culture medium of lead, chromium, nickel, aluminium, cobalt, mercury or a mixture thereof.  Specified micro-organisms are Micrococcus glutamicus and Escherichia coli.
Patent GB-413440-A (GB)
Title: Improvements relating to mattresses
IPC: A47C20/08
Filed: 1933-03-24
Abstract: 413,440. Bed adjustments. VAUGHAN, E., Field House, Clent, Worcestershire. March 24, 1933, No. 8887. [Class 52 (ii).] An adjustable mattress frame comprises three sections b, c, d pivotally connected at f and g, and mounted on a rigid frame a, the movable end section b is provided with a downwardly directed plate b<1> on which is mounted a spring controlled lever b<2> the lower arm of which is bent to pass through an aperture in the plate b<1> and engage with one or other of a number of apertures a<2> disposed in arcuate formation on the frame a for the purpose of holding the section b in adjusted position. The section b is hinged to a cross member e, while the sections c and d are provided with slotted plates c<1>, d<1> in which engage pins projecting from uprights h, i on the frame a. The frame a may be fitted with legs.
Patent GB-1014676-A (GB)
Title: Improvements in or relating to the insulation of the windings of electrical machines
IPC: H02K3/32
Filed: 1963-03-06
Abstract: 1,014,676. Dynamo-electric machine winding insulation. LICENTIA PATENT VERWALTUNGSG.m.b.H. March 6, 1963 [March 6, 1962], No. 8946/63. Heading H2A. An electrical machine having windings in slots in an iron core 5 has the winding conductors 2 insulated in situ by a method which comprises injecting into the individual slots after the windings have been positioned therein a flowable insulating medium, e.g. silicone rubber, which is introduced through flexible tubes 3 which are drawn into the slots at the same time as the conductors and whose walls are perforated at one or more points 6 in the length of the slots to allow the medium to pass into the spaces between the conductors and the core. The tubes may be slowly withdrawn from the slots as the medium is injected, but if left in may be of synthetic plastics material.
Patent GB-1035654-A (GB)
Title: Improvements in or relating to a method and apparatus for filling a container with rod-like articles
IPC: A24C5/354
Filed: 1962-03-08
Abstract: 1,035,654. Packaging-machines; endless conveyers. D. W. MOLINS and THE MOLINS ORGANISATION Ltd. March 7, 1963 [March 8, 1962], No. 8972/62. Headings B8A and B8C. Apparatus for filling containers with cigarettes or the like comprises a fluted conveyer band on which a row of cigarettes is formed and pusher means for moving the row into the container, the latter descending in steps to receive successive rows. In one embodiment two conveyers 19, 20 receive cigarettes C from a catcher band 1 in turn, the cigarettes building up along the upper conveyer while the completed row on the lower conveyer is discharged into the container 15. Suction applied through apertures 26 in the bases of the flutes retains the cigarettes. Photo-electric means 35-38 detect rows ready for transfer and cause actuation of upper and lower pushers 29, 30. Alternatively, a single vertically displaceable pusher could be used. The lack of a sufficient supply on the band 1 is detected by means 33, 34 to stop the conveyers 19, 20. Excessive supply is built up by a roller 32 against a wall 31. The two rows are fed into the container in staggered relation. In a further embodiment (Figs. 3, 4, not shown), a single lower conveyer has two sets of flutes for upper and lower rows of spaced cigarettes, each of those of the upper row lying between but above and supported by two of the lower row when both rows are pushed simultaneously into the container. In other embodiments (not shown), the staggered arrangement of superposed rows is achieved by transverse inclined vanes on the conveyer, two cigarettes being arranged between each pair, or electrostatic pads locate the cigarettes on the conveyer.
Patent GB-1460966-A (GB)
Title: Process for the preparation of basic aluminium chlorides
IPC: C01F7/57
Filed: 1974-02-27
Abstract: 1460966 Basic aluminium chlorides HOECHST AG 27 Feb 1974 [27 Feb 1973] 9010/74 Heading C1A Basic aluminium chlorides of the general formula where O<n<4, are prepared by (1) reacting a 36-55 wt. per cent HCl solution with a stoichiometric amount of a hydrated oxide or hydroxide of aluminium at at least 80 C., and (2) reacting the suspension of AlCl 3 .6H 2 O thus produced with additional hydrated oxide or hydroxide of aluminium at 100-150 C. until the required basic aluminium chloride is obtained; any unreacted aluminium hydroxide or hydrated oxide is then precipitated by addition of water; the hydrated oxide or hydroxide of aluminium used in both steps of the reaction must be one which is soluble in mineral acids only at a temperature of at least 80 C. Suitable aluminium hydroxides are Bayer alumina, Bayerite, Gibbsite, Hydrargillite, Diaspore, Boehmite and Bauxite.
Patent GB-874727-A (GB)
Title: Electron tube apparatus
Inventor: JEPSEN ROBERT LAWRENCE
IPC: H01J25/24
Filed: 1956-03-22
Abstract: 874,727. Velocity-modulated tubes. VARIAN ASSOCIATES. March 22, 1956; No. 9044/56. Class 39(1). An electron discharge device. comprises means for producing beam of electrons and, in the path of the beam, a hollow enclosure having open ends through which the beam 'enters and leaves the enclosure, the open ends of the enclosure being covered by grids, one of which has an aperture located approximately centrally thereof surrounded by other apertures having diameters less than a third that of the central aperture. Fig. 2 shows a cross-section of a reflex klystron wherein the cathode structure and reflector are mounted at opposite ends of a bore in a steel block 2. A leader 7 mounted in the bore is provided with a projecting annular portion 12, and honeycomb grids 8, 9 are mounted at each end of the leader. The grid 8, Fig. 3, comprises a central polygonal opening 43 surrounded by 190 smaller openings, the diameter of the opening 43 being at least three times that of the smaller openings to allow positive ions to escape to the cathode. The grid 9 has a thickness about four. times that of the grid 8. The resonator bounded on one side by grid 9 15 bounded on the other side by a grid 13 and communicates through a recess 5 to a waveguide provided with a glass window 32. The reflector 15 is provided with a central aperture to assist evacuation and is mounted on a tube 17 sealed within a mounting cup by a glass seal 19; a wire reflector lead 21 extends into the tube 17 and is sealed to it. The cathode assembly, Fig. 4, comprises a cathode button 46 secured by a flange to a cylindrical mounting member 48 welded at its bottom end to a focusing ring 53 and also to a heat reflector disc 52. The heater 51 is sandwiched between the cathode and the mounting member, and its ends are connected to nickel ribbons connected to the heat shield 52 and to a lead-in wire 63 respectively. The inner end of the supporting cup 55 is closed by a glass seal through which five leads are sealed (only four shown in Fig. 4); the cathode assembly is mounted on two wires, of which one 57 is shown in Fig. 4, and a wire 58 which is the common terminal for the getter, cathode and heater. A ribbon 59 encircles the lower part of the focusing ring and the three cathode supporting wires, and is secured to each, for example by welding. The getter 61 is secured at one end to the common terminal lead 58 and at the other end to a lead 62.